Camera optical lens

ABSTRACT

The present invention discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens having a positive refractive power, a third lens having a positive refractive power, a fourth lens, a fifth lens, and a sixth lens. The first lens is made of plastic material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, and the sixth lens is made of glass material. The camera optical lens further satisfies specific conditions.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority benefit of Chinese Patent Applications Ser. No. 201810203706.6 and Ser. No. 201810203822.8 filed on Mar. 13, 2018, the entire content of which is incorporated herein by reference.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to a camera optical lens suitable for handheld devices such as smart phones and digital cameras and imaging devices.

DESCRIPTION OF RELATED ART

With the emergence of smart phones in recent years, the demand for miniature camera lens is increasing day by day, but the photosensitive devices of general camera lens are no other than Charge Coupled Device (CCD) or Complementary metal-Oxide Semiconductor Sensor (CMOS sensor), and as the progress of the semiconductor manufacturing technology makes the pixel size of the photosensitive devices shrink, coupled with the current development trend of electronic products being that their functions should be better and their shape should be thin and small, miniature camera lens with good imaging quality therefor has become a mainstream in the market. In order to obtain better imaging quality, the lens that is traditionally equipped in mobile phone cameras adopts a three-piece or four-piece lens structure. And, with the development of technology and the increase of the diverse demands of users, and under this circumstances that the pixel area of photosensitive devices is shrinking steadily and the requirement of the system for the imaging quality is improving constantly, the five-piece, six-piece and seven-piece lens structure gradually appear in lens design. There is an urgent need for ultra-thin wide-angle camera lenses which have good optical characteristics and the chromatic aberration of which is fully corrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood with reference to the following drawings. The components in the drawing are not necessarily drawn to scale, the emphasis instead being placed to upon clearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordance with a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lens shown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG. 1;

FIG. 4 presents a schematic diagram of the field curvature and distortion of the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordance with a second embodiment of the present invention;

FIG. 6 presents the longitudinal aberration of the camera optical lens shown in FIG. 5;

FIG. 7 presents the lateral color of the camera optical lens shown in FIG. 5;

FIG. 8 presents the field curvature and distortion of the camera optical lens shown in FIG. 5:

FIG. 9 is a schematic diagram of a camera optical lens in accordance with a third embodiment of the present invention;

FIG. 10 presents the longitudinal aberration of the camera optical lens shown in FIG. 9;

FIG. 11 presents the lateral color of the camera optical lens shown in FIG. 9;

FIG. 12 presents the field curvature and distortion of the camera optical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail with reference to several exemplary embodiments. To make the technical problems to be solved, technical solutions and beneficial effects of the present disclosure more apparent, the present disclosure is described in further detail together with the figure and the embodiments. It should be understood the specific embodiments described hereby is only to explain the disclosure, not intended to limit the disclosure.

Embodiment 1

As referring to FIG. 1, the present invention provides a camera optical lens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of the present invention, the camera optical lens 10 comprises 6 lenses. Specifically, from the object side to the image side, the camera optical lens 10 comprises in sequence: an aperture S1, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6. Optical element like optical filter GF can be arranged between the sixth lens L6 and the image surface Si. The first lens L1 is made of plastic material, the second lens L2 is made of plastic material, the third lens L3 is made of plastic material, the fourth lens L4 is made of plastic material, the fifth lens L5 is made of plastic material, and the sixth lens L6 is made of glass material.

The second lens L2 has a positive refractive power, and the third lens L3 has a positive refractive power.

Here, the focal length of the whole camera optical lens 10 is defined as f, the focal length of the first lens is defined as f1. The camera optical lens further satisfies the following condition: 0.5≤f1/f≤10. Condition 0.5≤f1/f≤10 fixes the positive refractive power of the first lens L1. If the lower limit of the set value is exceeded, although it benefits the ultra-thin development of lenses, but the positive refractive power of the first lens L1 will be too strong, problem like aberration is difficult to be corrected, and it is also unfavorable for wide-angle development of lens. On the contrary, if the upper limit of the set value is exceeded, the positive refractive power of the first lens L1 becomes too weak, it is then difficult to develop ultra-thin lenses. Preferably, the following condition shall be satisfied, 1.65≤f1/f≤8.57.

The refractive power of the sixth lens L6 is defined as n6. Here the following condition should be satisfied: 1.75≤n6≤2.2. This condition fixes the refractive power of the sixth lens L6, and refractive power within this range benefits the ultra-thin development of lenses, and it also benefits the correction of aberration. Preferably, the following condition shall be satisfied, 1.705≤n6≤2.1.

The thickness on-axis of the sixth lens L6 is defined as d11, and the total optical length of the camera optical lens 10 is defined as TTL. The following condition: 0.01≤d11/TTL≤0.2 should be satisfied. This condition fixes the ratio between the thickness on-axis of the sixth lens L6 and the total optical length TTL. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.07≤d11/TTL≤0.176 shall be satisfied.

When the focal length of the camera optical lens 10 of the present invention, the focal length of each lens, the refractive power of the related lens, and the total optical length, the thickness on-axis and the curvature radius of the camera optical lens satisfy the above conditions, the camera optical lens 10 has the advantage of high performance and satisfies the design requirement of low TTL.

In this embodiment, the first lens L1 has a positive refractive power with a convex object side surface relative to the proximal axis and a concave image side surface relative to the proximal axis.

The curvature radius of the object side surface of the first lens L1 is defined as R1, the curvature radius of the image side surface of the first lens L1 is defined as R2. The camera optical lens 10 further satisfies the following condition: −40.1≤(R1+R2)/(R1−R2)≤−6.8, by which, the shape of the first lens L1 can be reasonably controlled and it is effectively for correcting spherical aberration of the camera optical lens. Preferably, the condition −25.06≤(R1+R2)/(R1−R2)≤−8.5 shall be satisfied.

The thickness on-axis of the first lens L1 is defined as d1. The following condition: 0.14≤d1≤0.59 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.22≤d1≤0.47 shall be satisfied.

In this embodiment, the second lens L2 has a convex object side surface relative to the proximal axis and a concave image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the second lens L2 is f2. The following condition should be satisfied: 0.76≤f2/f≤2.97. When the condition is satisfied, the positive refractive power of the second lens L2 is controlled within reasonable scope, the spherical aberration caused by the first lens L1 which has positive refractive power and the field curvature of the system then can be reasonably and effectively balanced. Preferably, the condition 1.22≤f2/f≤2.38 should be satisfied.

The curvature radius of the object side surface of the second lens L2 is defined as R3, the curvature radius of the image side surface of the second lens L2 is defined as R4. The following condition should be satisfied: −4.94≤(R3+R4)/(R3−R4)≤−1.07, which fixes the shape of the second lens L2 and when beyond this range, with the development into the direction of ultra-thin and wide-angle lenses, problem like chromatic aberration of the on-axis is difficult to be corrected. Preferably, the following condition shall be satisfied, −3.08≤(R3+R4)/(R3−R4)≤−1.34.

The thickness on-axis of the second lens L2 is defined as d3. The following condition: 0.23≤d3≤0.73 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.37≤d3≤0.58 shall be satisfied.

In this embodiment, the third lens L3 has a convex object side surface relative to the proximal axis and a concave image side surface relative to the proximal axis.

The thickness on-axis of the third lens L3 is defined as d5. The following condition: 0.12≤d5≤0.44 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.19≤d5≤0.35 shall be satisfied.

In this embodiment, the fourth lens L4 has a positive refractive power with a concave object side surface relative to the proximal axis and a convex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the fourth lens L4 is f4. The following condition should be satisfied: 0.52≤f4/f≤1.62, which can effectively reduce the sensitivity of lens group used in camera and further enhance the imaging quality. Preferably, the condition 0.83≤f4/f≤1.3 should be satisfied.

The curvature radius of the object side surface of the fourth lens L4 is defined as R7, the curvature radius of the image side surface of the fourth lens L4 is defined as R8. The following condition should be satisfied: 1.6≤(R7+R8)/(R7−R8)≤4.97, by which, the shape of the fourth lens L4 is to fixed, further, when beyond this range, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, 2.55≤(R7+R8)/(R7−R8)≤3.97.

The thickness on-axis of the fourth lens L4 is defined as d7. The following condition: 0.28≤d7≤0.87 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.44≤d7≤0.7 shall be satisfied.

In this embodiment, the fifth lens L5 has a negative refractive power with a concave object side surface relative to the proximal axis and a convex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the fifth lens L5 is f5. The following condition should be satisfied: −2.08≤f5/f≤−0.62, which can effectively smooth the light angles of the camera and reduce the tolerance sensitivity. Preferably, the condition −1.3≤f5/f≤−0.77 should be satisfied.

The curvature radius of the object side surface of the fifth lens L5 is defined as R9, the curvature radius of the image side surface of the fifth lens L5 is defined as R10. The following condition should be satisfied: −4.82≤(R9+R10)/(R9−R10)≤−1.41, by which, the shape of the fifth lens L5 is fixed, further, when beyond this range, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, −3.01≤(R9+R10)/(R9−R10)≤−1.77.

The thickness on-axis of the fifth lens L5 is defined as d9. The following condition: 0.15≤d9≤0.54 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.23≤d9≤0.43 shall be satisfied.

In this embodiment, the sixth lens L6 has a positive refractive power with a convex object side surface relative to the proximal axis and a concave image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the sixth lens L6 is f6. The following condition should be satisfied: 1≤f6/f≤9.08, which can effectively reduce the sensitivity of lens group used in camera and further enhance the imaging quality. Preferably, the condition 1.6≤f6/f≤7.26 should be satisfied.

The curvature radius of the object side surface of the sixth lens L6 is defined as R11, the curvature radius of the image side surface of the sixth lens L6 is defined as R12. The following condition should be satisfied: 6.25≤(R11+R12)/(R11−R12)≤1323.15, by which, the shape of the sixth lens L6 is fixed, further, when beyond this range, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, 10≤(R11+R12)/(R11−R12)≤1058.52.

The thickness on-axis of the sixth lens L6 is defined as d11. The following condition:0.33≤d11≤1.23 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.53≤d11≤0.99 shall be satisfied.

The focal length of the whole camera optical lens 10 is f, the combined focal length of the first lens L1 and the second lens L2 is f12. The following condition should be satisfied: 0.59≤f12/f≤1.97, which can effectively avoid the aberration and field curvature of the camera optical lens, and can suppress the rear focal length for realizing the ultra-thin lens. Preferably, the condition 0.945f12/f≤1.57 should be satisfied.

In this embodiment, the total optical length TTL of the camera optical lens 10 is less than or equal to 6.06 mm, it is beneficial for the realization of ultra-thin lenses. Preferably, the total optical length TTL of the camera optical lens 10 is less than or equal to 5.78 mm.

In this embodiment, the aperture F number of the camera optical lens 10 is less than or equal to 2.06. A large aperture has better imaging performance. Preferably, the aperture F number of the camera optical lens 10 is less than or equal to 2.02.

With such design, the total optical length TTL of the whole camera optical lens 10 can be made as short as possible, thus the miniaturization characteristics can be maintained.

In the following, an example will be used to describe the camera optical lens 10 of the present invention. The symbols recorded in each example are as follows. The unit of distance, radius and center thickness is mm.

TTL: Optical length (the distance on-axis from the object side surface of the first lens L1 to the image surface).

Preferably, inflexion points and/or arrest points can also be arranged on the object side surface and/or image side surface of the lens, so that the demand for high quality imaging can be satisfied, the description below can be referred for specific implementable scheme.

The design information of the camera optical lens 10 in the first embodiment of the present invention is shown in the following, the unit of the focal length, distance, radius and center thickness is mm.

The design information of the camera optical lens 10 in the first embodiment of the present invention is shown in the tables 1 and 2.

TABLE 1 R d nd vd S1 ∞ d0 = −0.220 R1 1.975 d1 = 0.279 nd1 1.5181 v1 56.30 R2 2.182 d2 = 0.111 R3 2.364 d3 = 0.486 nd2 1.5140 v2 56.80 R4 10.153 d4 = 0.309 R5 17.418 d5 = 0.235 nd3 1.5608 v3 22.53 R6 17.333 d6 = 0.254 R7 −3.061 d7 = 0.580 nd4 1.7057 v4 70.00 R8 −1.615 d8 = 0.079 R9 −1.512 d9 = 0.359 nd5 1.6976 v5 25.60 R10 −4.210  d10 = 0.221 R11 1.359  d11 = 0.822 nd6 1.7099 v6 38.29 R12 1.356  d12 = 0.746 R13 ∞  d13 = 0.210 ndg 1.5168 vg 64.17 R14 ∞  d14 = 0.730

Where:

In which, the meaning of the various symbols is as follows.

S1: Aperture;

R: The curvature radius of the optical surface, the central curvature radius in case of lens;

R1: The curvature radius of the object side surface of the first lens L1;

R2: The curvature radius of the image side surface of the first lens L1;

R3: The curvature radius of the object side surface of the second lens L2;

R4: The curvature radius of the image side surface of the second lens L2;

R5: The curvature radius of the object side surface of the third lens L3;

R6: The curvature radius of the image side surface of the third lens L3;

R7: The curvature radius of the object side surface of the fourth lens L4;

R8: The curvature radius of the image side surface of the fourth lens L4;

R9: The curvature radius of the object side surface of the fifth lens L5;

R10: The curvature radius of the image side surface of the fifth lens L5;

R11: The curvature radius of the object side surface of the sixth lens L6;

R12: The curvature radius of the image side surface of the sixth lens L6:

R13: The curvature radius of the object side surface of the optical filter GF;

R14: The curvature radius of the image side surface of the optical filter GF;

d: The thickness on-axis of the lens and the distance on-axis between the lens;

d0: The distance on-axis from aperture S1 to the object side surface of the first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lens L1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lens L2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lens L3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lens L4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lens L5 to the object side surface of the sixth lens L6;

d11: The thickness on-axis of the sixth lens L6;

d12: The distance on-axis from the image side surface of the sixth lens L6 to the object side surface of the optical filter GF;

d13: The thickness on-axis of the optical filter GF;

d14: The distance on-axis from the image side surface to the image surface of the optical filter GF;

nd: The refractive power of the d line;

nd1: The refractive power of the d line of the first lens L1;

nd2: The refractive power of the d line of the second lens L2;

nd3: The refractive power of the d line of the third lens L3;

nd4: The refractive power of the d line of the fourth lens L4;

nd5: The refractive power of the d line of the fifth lens L5;

nd6: The refractive power of the d line of the sixth lens L6;

ndg: The refractive power of the d line of the optical filter GF;

vd: The abbe number;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

v6: The abbe number of the sixth lens L6;

vg: The abbe number of the optical filter GF.

Table 2 shows the aspherical surface data of the camera optical lens 10 in the embodiment 1 of the present invention.

TABLE 2 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16 R1 4.9984E−01 −0.010261876 0.005098111 −0.013740345 0.013330858 −0.009496032 0.00336178 −0.000486928 R2 1.0441E−01 −0.028674603 −0.002854909 0.002509949 −0.002459392 −0.00965373 0.006215008 −0.002419316 R3 −7.7076E+00 0.027797742 −0.045575133 −0.00472687 0.033448458 −0.065646517 0.030079517 −0.006414558 R4 2.5193E+01 −0.050928043 −0.033714863 −0.032421811 0.053453198 −0.061540624 0.024835103 −0.000808482 R5 0.0000E+00 −0.08675321 −0.04237568 −0.052924588 −0.004370682 0.027123344 0.003724902 −0.002124734 R6 0.0000E+00 −0.048174928 0.044079592 −0.14293627 0.14887612 −0.088240578 0.02062285 0.000817219 R7 3.9058E+00 −0.030125471 0.035067374 0.067228619 −0.05684778 −0.011407328 0.021832609 −0.004397619 R8 −2.7298E−01 0.009816941 −0.037764199 0.054680601 −0.037467943 0.015912994 −0.002504669 0.000239654 R9 −7.1564E+00 0.015198649 −0.18961598 0.36455536 −0.43534291 0.30356217 −0.11059359 0.015994556 R10 −3.4089E+00 −0.155072 0.24362361 −0.25718309 0.17095068 −0.063912576 1.23E−02 −9.64E−04 R11 −7.1288E+00 −0.155072 0.030404702 −0.002067267 −0.000267914 1.32E−05 7.20E−06 −6.69E−07 R12 −5.1720E+00 −0.11228313 0.017094008 −0.002942219 0.000304014 −1.69E−05 4.41E−07 −8.47E−09

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, A16 are aspheric surface indexes.

IH: Image height y=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰ +A12x ¹² +A14x ¹⁴ +A16x ¹⁶  (1)

For convenience, the aspheric surface of each lens surface uses the aspheric surfaces shown in the above condition (1). However, the present invention is not limited to the aspherical polynomials form shown in the condition (1).

Table 3 and table 4 show the inflexion points and the arrest point design data of the camera optical lens 10 lens in embodiment 1 of the present invention. In which, P1R1 and P1R2 represent respectively the object side surface and image side surface of the first lens L1, P2R1 and P2R2 represent respectively the object side surface and image side surface of the second lens L2, P3R1 and P3R2 represent respectively the object side surface and image side surface of the third lens L3, P4R1 and P4R2 represent respectively the object side surface and image side surface of the fourth lens L4, P5R1 and P5R2 represent respectively the object side surface and image side surface of the fifth lens L5, P6R1 and P6R2 represent respectively the object side surface and image side surface of the sixth lens L6. The data in the column named “inflexion point position” are the vertical distances from the inflexion points arranged on each lens surface to the optic axis of the camera optical lens 10. The data in the column named “arrest point position” are the vertical distances from the arrest points arranged on each lens surface to the optic axis of the camera optical lens 10.

TABLE 3 Inflexion point Inflexion point Inflexion point Inflexion point number position 1 position 2 position3 P1R1 0 P1R2 1 0.905 P2R1 1 0.705 P2R2 1 0.375 P3R1 2 0.235 1.095 P3R2 2 0.345 1.215 P4R1 2 1.125 1.315 P4R2 1 1.135 P5R1 0 P5R2 2 1.095 1.705 P6R1 3 0.515 1.585 2.195 P6R2 1 0.685

TABLE 4 Arrest point Arrest point number position 1 P1R1 0 P1R2 0 P2R1 1 0.985 P2R2 1 0.595 P3R1 1 0.385 P3R2 1 0.555 P4R1 0 P4R2 0 P5R1 0 P5R2 0 P6R1 1 1.145 P6R2 1 1.725

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486.1 nm, 587.6 nm and 656.3 nm passes the camera optical lens 10 in the first embodiment. FIG. 4 shows the field curvature and distortion schematic diagrams after light with a wavelength of 587.6 nm passes the camera optical lens 10 in the first embodiment, the field curvature S in FIG. 4 is a field curvature in the sagittal direction, T is a field curvature in the meridian direction.

Table 13 shows the various values of the embodiments 1, 2, 3, and the values corresponding with the parameters which are already specified in the conditions.

As shown in Table 13, the first embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 1.9239 mm, the full vision field image height is 3.512 mm, the vision field angle in the diagonal direction is 84.77°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

Embodiment 2

Embodiment 2 is basically the same as embodiment 1, the meaning of its symbols is the same as that of embodiment 1, in the following, only the differences are described.

Table 5 and table 6 show the design data of the camera optical lens in embodiment 2 of the present invention.

TABLE 5 R d nd vd S1 ∞ d0 = −0.286 R1 1.859 d1 = 0.395 nd1 1.6553 v1 56.30 R2 2.249 d2 = 0.144 R3 2.554 d3 = 0.459 nd2 1.5140 v2 56.80 R4 6.035 d4 = 0.251 R5 16.839 d5 = 0.294 nd3 1.6022 v3 23.94 R6 16.729 d6 = 0.226 R7 −3.284 d7 = 0.550 nd4 1.7057 v4 57.77 R8 −1.718 d8 = 0.079 R9 −1.486 d9 = 0.293 nd5 1.6506 v5 25.60 R10 −3.680  d10 = 0.295 R11 1.623  d11 = 0.797 nd6 1.7100 v6 37.95 R12 1.610572  d12 = 0.765 R13 ∞  d13 = 0.210 ndg 1.5168 vg 64.17 R14 ∞  d14 = 0.748

Table 6 shows the aspherical surface data of each lens of the camera optical lens 20 in embodiment 2 of the present invention.

TABLE 6 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16 R1 4.5313E−01 −0.013293108 0.004710955 −0.013387598 0.01364468 −0.009430183 0.00315505 −0.000899612 R2 1.1789E−01 −0.026355114 −0.004587888 0.001007746 −0.003299726 −0.008053195 0.007757445 −0.004504099 R3 −9.2290E+00 0.023458932 −0.045142797 −0.003543865 0.035360151 −0.064096254 0.030746891 −0.005801525 R4 2.0531E+01 −0.051287129 −0.053741852 −0.025668409 0.057579222 −0.076973153 0.033022058 −0.001231274 R5 0.0000E+00 −0.086392143 −0.042230277 −0.052605162 −0.004412841 0.027065103 0.003564449 −0.002235752 R6 0.0000E+00 −0.059915065 0.083687186 −0.21223282 0.22510687 −0.11838921 0.024482585 0.001075558 R7 4.7877E+00 −0.028201762 0.035460897 0.06702367 −0.057178361 −0.01148695 0.021843341 −0.004269337 R8 −4.0058E−01 0.016425957 −0.070277388 0.091581808 −0.0476889 0.008557139 0.000573269 0.000382769 R9 −5.7257E+00 0.0137565 −0.1875459 0.36383212 −0.43640489 0.30353108 −0.11027941 0.016113198 R10 −3.8603E+00 −0.13969898 0.23870986 −0.25786338 0.17254374 −0.064684854 1.25E−02 −9.81E−04 R11 −8.5710E+00 −0.13969898 0.023509451 −0.001292343 −0.000267502 1.25E−05 6.82E−06 −7.01E−07 R12 −5.3574E+00 −0.094200298 0.016896523 −0.002959814 0.000311208 −1.74E−05 4.46E−07 −1.14E−08

Table 7 and table 8 show the inflexion points and the arrest point design data of the camera optical lens 20 lens in embodiment 2 of the present invention.

TABLE 7 Inflexion point Inflexion point Inflexion point Inflexion point number position 1 position 2 position3 P1R1 0 P1R2 1 0.885 P2R1 1 0.705 P2R2 2 0.455 1.165 P3R1 2 0.235 1.105 P3R2 2 0.335 1.135 P4R1 2 1.115 1.295 P4R2 1 1.135 P5R1 1 1.355 P5R2 2 1.075 1.525 P6R1 3 0.525 1.715 2.005 P6R2 1 0.695

TABLE 8 Arrest point Arrest point Arrest point number position 1 position 2 P1R1 0 P1R2 0 P2R1 1 0.985 P2R2 1 0.715 P3R1 1 0.385 P3R2 2 0.555 1.255 P4R1 0 P4R2 1 1.365 P5R1 0 P5R2 0 P6R1 1 1.145 P6R2 1 1.615

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486.1 nm, 587.6 nm and 656.3 nm passes the camera optical lens 20 in the second embodiment. FIG. 8 shows the field curvature and distortion schematic diagrams after light with a wavelength of 587.6 nm passes the camera optical lens 20 in the second embodiment.

As shown in Table 13, the second embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 2.0819 mm, the full vision field image height is 3.512 mm, the vision field angle in the diagonal direction is 80.290, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

Embodiment 3

Embodiment 3 is basically the same as embodiment 1, the meaning of its symbols is the same as that of embodiment 1, in the following, only the differences are described.

Table 9 and table 10 show the design data of the camera optical lens 30 in embodiment 3 of the present invention.

TABLE 9 R d nd vd S1 ∞ d0 = −0.300 R1 1.775 d1 = 0.394 nd1 1.5920 v1 56.30 R2 2.161 d2 = 0.166 R3 2.553 d3 = 0.468 nd2 1.5140 v2 56.80 R4 7.097 d4 = 0.308 R5 10.009 d5 = 0.238 nd3 1.6354 v3 20.50 R6 9.916 d6 = 0.248 R7 −3.054 d7 = 0.567 nd4 1.7057 v4 52.96 R8 −1.637 d8 = 0.076 R9 −1.622 d9 = 0.303 nd5 1.6775 v5 25.60 R10 −3.927  d10 = 0.338 R11 1.638  d11 = 0.668 nd6 2.0000 v6 36.22 R12 1.395005  d12 = 0.732 R13 ∞  d13 = 0.210 ndg 1.5168 vg 64.17 R14 ∞  d14 = 0.717

Table 10 shows the aspherical surface data of each lens of the camera optical lens 30 in embodiment 3 of the present invention.

TABLE 10 Conic Index Aspherical Surface index K A4 A6 A8 A10 A12 A14 A16 R1 4.3456E−01 −0.015065647 0.003673826 −0.012695988 0.013543865 −0.010079526 0.002823612 −0.000465379 R2 2.7891E−01 −0.023678016 −0.002970321 0.002230147 −0.00230848 −0.009052235 0.006356141 −0.00348558 R3 −9.0962E+00 0.028981939 −0.044175846 −0.003290455 0.03581346 −0.064974746 0.030464421 −0.005772292 R4 2.6477E+01 −0.053482446 −0.031272639 −0.032685811 0.053518619 −0.061130894 0.024883838 −0.001231544 R5 0.0000E+00 −0.082906787 −0.038224824 −0.053936325 −0.005620038 0.026429157 0.003434846 −0.002225648 R6 0.0000E+00 −0.052023484 0.039213992 −0.14125603 0.15085082 −0.087346134 0.021074334 0.001014455 R7 3.9637E+00 −0.028882346 0.038313948 0.068410387 −0.056611675 −0.011404664 0.021830257 −0.004331715 R8 −3.3580E−01 0.012989893 −0.0350647 0.055260361 −0.037558149 0.015790497 −0.00258457 0.000218726 R9 −6.4643E+00 0.018175412 −0.18973503 0.36361162 −0.43575528 0.30344439 −0.11052178 0.016053218 R10 −2.7301E+00 −0.15423381 0.24415453 −0.2571611 0.17087659 −0.063933678 1.23E−02 −9.62E−04 R11 −9.8807E+00 −0.15423381 0.030007602 −0.002083711 −0.000258149 1.49E−05 7.20E−06 −7.18E−07 R12 −8.1316E+00 −0.11233549 0.017225108 −0.002922569 0.000305758 −1.69E−05 4.21E−07 −1.18E−08

Table 11 and table 12 show the inflexion points and the arrest point design data of the camera optical lens 30 lens in embodiment 3 of the present invention.

TABLE 11 Inflexion point Inflexion point Inflexion point Inflexion point number position 1 position 2 position 3 P1R1 0 P1R2 1 0.925 P2R1 1 0.725 P2R2 1 0.445 P3R1 2 0.305 1.115 P3R2 2 0.415 1.145 P4R1 2 1.045 1.305 P4R2 1 1.105 P5R1 1 1.415 P5R2 2 1.105 1.565 P6R1 3 0.485 1.625 2.175 P6R2 1 0.585

TABLE 12 Arrest point Arrest point Arrest point number position 1 position 2 P1R1 0 P1R2 0 P2R1 1 0.995 P2R2 1 0.695 P3R1 1 0.495 P3R2 2 0.665 1.265 P4R1 0 P4R2 1 1.395 P5R1 0 P5R2 0 P6R1 1 1.015 P6R2 1 1.405

FIG. 10 and FIG. 11 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486.1 nm, 587.6 nm and 656.3 nm passes the camera optical lens 30 in the third embodiment. FIG. 12 shows the field curvature and distortion schematic diagrams after light with a wavelength of 587.6 nm passes the camera optical lens 30 in the third embodiment.

As shown in Table 13, the third embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 2.0695 mm, the full vision field image height is 3.512 mm, the vision field angle in the diagonal direction is 80.63°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

TABLE 13 Embodiment Embodiment Embodiment 1 2 3 F 3.848 4.164 4.139 f1 27.498 11.687 12.168 f2 5.872 8.247 7.495 f3 5.805E+11 9.878E+12 2.841E+10 f4 4.157 4.455 4.290 f5 −3.578 −4.043 −4.309 f6 7.684 11.545 25.048 f12 5.041 5.067 4.887 (R1 + R2)/(R1 − R2) −20.052 −10.545 −10.199 (R3 + R4)/(R3 − R4) −1.607 −2.468 −2.124 (R5 + R6)/(R5 − R6) 412.015 304.099 215.182 (R7 + R8)/(R7 − R8) 3.234 3.193 3.311 (R9 + R10)/(R9 − R10) −2.121 −2.354 −2.408 (R11 + R12)/(R11 − R12) 882.103 266.139 12.497 f1/f 7.146 2.807 2.940 f2/f 1.526 1.981 1.811 f3/f 1.509E+11 2.372E+12 6.863E+09 f4/f 1.080 1.070 1.037 f5/f −0.930 −0.971 −1.041 f6/f 1.997 2.773 6.052 f12/f 1.310 1.217 1.181 d1 0.279 0.395 0.394 d3 0.486 0.459 0.468 d5 0.235 0.294 0.238 d7 0.580 0.550 0.567 d9 0.359 0.293 0.303 d11 0.822 0.797 0.668 Fno 2.000 2.000 2.000 TTL 5.419 5.507 5.433 d1/TTL 0.051 0.072 0.073 d3/TTL 0.090 0.083 0.086 d5/TTL 0.043 0.053 0.044 d7/TTL 0.107 0.100 0.104 d9/TTL 0.066 0.053 0.056 d11/TTL 0.152 0.145 0.123 n1 1.5181 1.6553 1.5920 n2 1.5140 1.5140 1.5140 n3 1.5608 1.6022 1.6354 n4 1.7057 1.7057 1.7057 n5 1.6976 1.6506 1.6775 n6 1.7099 1.7100 2.0000 v1 56.3000 56.3000 56.3000 v2 56.8000 56.8000 56.8000 v3 22.5304 23.9393 20.4993 v4 70.0015 57.7707 52.9645 v5 25.6000 25.6000 25.6000 v6 38.2852 37.9546 36.2247

It is to be understood, however, that even though numerous characteristics and advantages of the present exemplary embodiments have been set forth in the foregoing description, together with details of the structures and functions of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms where the appended claims are expressed. 

What is claimed is:
 1. A camera optical lens comprising, from an object side to an image side in sequence: a first lens having a positive refractive power, a second lens having a positive refractive power, a third lens having a positive refractive power, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power, and a sixth lens having a positive refractive power; wherein the camera optical lens further satisfies the following conditions: 0.5≤f1/f≤10; 1.7≤n6≤2.2; 0.01≤d11/TTL≤0.2; where f: a focal length of the camera optical lens; f1: a focal length of the first lens; n6: a refractive index of the sixth lens; d11: a thickness on-axis of the sixth lens; TTL: a total optical length of the camera optical lens from an object side surface of the first lens to an image plane.
 2. The camera optical lens as described in claim 1, wherein the first lens is made of plastic material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, the sixth lens is made of glass material.
 3. The camera optical lens as described in claim 1 further satisfying the following conditions: 1.65≤f1/f≤8.57; 1.705≤n6≤2.1; 0.07≤d11/TTL≤0.176.
 4. The camera optical lens as described in claim 1, wherein first lens has a convex object side surface and a concave image side surface; the camera optical lens further satisfies the following conditions: −40.1 (R1+R2)/(R1−R2)≤−6.8; 0.14 mm≤d1≤0.59 mm; where R1: a curvature radius of object side surface of the first lens; R2: a curvature radius of image side surface of the first lens; d1: a thickness on-axis of the first lens.
 5. The camera optical lens as described in claim 4 further satisfying the following conditions: −25.06≤(R1+R2)/(R1−R2)≤−8.5; 0.22 mm≤d1≤0.47 mm.
 6. The camera optical lens as described in claim 1, wherein the second lens has a concave image side surface; the camera optical lens further satisfies the following conditions: 0.76≤f2/f≤2.97; −4.94≤(R3+R4)/(R3−R4)≤−1.07; 0.23 mm≤d3≤0.73 mm; where f: the focal length of the camera optical lens; f2: a focal length of the second lens; R3: a curvature radius of the object side surface of the second lens; R4: a curvature radius of the image side surface of the second lens; d3: a thickness on-axis of the second lens.
 7. The camera optical lens as described in claim 6 further satisfying the following conditions: 1.22≤f2/f≤2.38; −3.08≤(R3+R4)/(R3−R4)≤−1.34; 0.37 mm≤d3≤0.58 mm.
 8. The camera optical lens as described in claim 1, wherein the third lens has a concave image side surface; the camera optical lens further satisfies the following conditions: 0.12 mm≤d5≤0.44 mm; where d5: a thickness on-axis of the third lens.
 9. The camera optical lens as described in claim 8 further satisfying the following conditions: 0.19 mm≤d5≤0.35 mm.
 10. The camera optical lens as described in claim 1, wherein the fourth lens has a concave object side surface and a convex image side surface; the camera optical lens further satisfies the following conditions: 0.52≤f4/f≤1.62; 1.65≤(R7+R8)/(R7−R8)≤4.97; 0.28 mm≤d7≤0.87 mm; where f: the focal length of the camera optical lens; f4: a focal length of the fourth lens; R7: a curvature radius of the object side surface of the fourth lens; R8: a curvature radius of the image side surface of the fourth lens; d7: a thickness on-axis of the fourth lens.
 11. The camera optical lens as described in claim 10 further satisfying the following conditions: 0.83≤f4/f≤1.3; 2.55≤(R7+R8)/(R7−R8)≤3.97; 0.44 mm≤d7≤0.7 mm.
 12. The camera optical lens as described in claim 1, wherein the fifth lens has a concave object side surface and a convex image side surface; the camera optical lens further satisfies the following conditions: −2.08≤f5/f≤−0.62; −4.82≤(R9+R10)/(R9−R10)≤1.41; 0.15 mm≤d9≤0.54 mm; where f: the focal length of the camera optical lens; f5: a focal length of the fifth lens; R9: a curvature radius of the object side surface of the fifth lens; R10: a curvature radius of the image side surface of the fifth lens; d9: a thickness on-axis of the fifth lens.
 13. The camera optical lens as described in claim 12 further satisfying the following conditions: −1.3≤f5/f≤0.77; −3.01≤(R9+R10)/(R9−R10)≤−1.77; 0.23 mm≤d9≤0.43 mm.
 14. The camera optical lens as described in claim 1, wherein the sixth lens has a convex object side surface and a concave image side surface; the camera optical lens further satisfies the following conditions: 1≤f6/f≤9.08; 6.25≤(R11+R12)/(R11−R12)≤1323.15; 0.33 m≤d11≤1.23 mm; where f: the focal length of the camera optical lens; f6: a focal length of the sixth lens; R11: a curvature radius of the object side surface of the sixth lens; R12: a curvature radius of the image side surface of the sixth lens; d11: the thickness on-axis of the sixth lens.
 15. The camera optical lens as described in claim 14 further satisfying the following conditions: 1.6≤f6/f≤7.26; 10≤(R11+R12)/(R11−R12)≤1058.52; 0.53 mm≤d11≤0.99 mm.
 16. The camera optical lens as described in claim 1 further satisfying the following condition: 0.59≤f12/f≤1.97; where f12: a combined focal length of the first lens and the second lens; f: the focal length of the camera optical lens.
 17. The camera optical lens as described in claim 16 further satisfying the following condition: 0.94≤f12/f≤1.57.
 18. The camera optical lens as described in claim 1, wherein the total optical length TTL of the camera optical lens is less than or equal to 6.06 mm.
 19. The camera optical lens as described in claim 18, wherein the total optical length TTL of the camera optical lens is less than or equal to 5.78 mm.
 20. The camera optical lens as described in claim 1, wherein a aperture F number of the camera optical lens is less than or equal to 2.06.
 21. The camera optical lens as described in claim 20, wherein the aperture F number of the camera optical lens is less than or equal to 2.02. 